1 // SPDX-License-Identifier: GPL-2.0
10  * This test suite verifies the functionality and behavior of the
14  * - Device access: basic open/close, and enforcement of exclusive access.
15  * - Session management: creation of unique sessions, and duplicate name detection.
16  * - Resource preservation: successfully preserving individual and multiple memfds,
18  * - Complex multi-session scenarios involving mixed empty and populated files.
41 	self->fd1 = -1;  in FIXTURE_SETUP()
42 	self->fd2 = -1;  in FIXTURE_SETUP()
47 	if (self->fd1 >= 0)  in FIXTURE_TEARDOWN()
48 		close(self->fd1);  in FIXTURE_TEARDOWN()
49 	if (self->fd2 >= 0)  in FIXTURE_TEARDOWN()
50 		close(self->fd2);  in FIXTURE_TEARDOWN()
54  * Test Case: Basic Open and Close
61 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
63 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
66 	ASSERT_GE(self->fd1, 0);  in TEST_F()
67 	ASSERT_EQ(close(self->fd1), 0);  in TEST_F()
68 	self->fd1 = -1;  in TEST_F()
72  * Test Case: Exclusive Open Enforcement
80 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
82 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
85 	ASSERT_GE(self->fd1, 0);  in TEST_F()
86 	self->fd2 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
87 	EXPECT_LT(self->fd2, 0);  in TEST_F()
97 	strncpy((char *)args.name, name, sizeof(args.name) - 1);  in create_session()
100 		return -errno;  in create_session()
106  * Test Case: Create Duplicate Session
115 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
116 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
119 	ASSERT_GE(self->fd1, 0);  in TEST_F()
121 	session_fd1 = create_session(self->fd1, "duplicate-session-test");  in TEST_F()
124 	session_fd2 = create_session(self->fd1, "duplicate-session-test");  in TEST_F()
126 	EXPECT_EQ(-session_fd2, EEXIST);  in TEST_F()
132  * Test Case: Create Distinct Sessions
140 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
141 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
144 	ASSERT_GE(self->fd1, 0);  in TEST_F()
146 	session_fd1 = create_session(self->fd1, "distinct-session-1");  in TEST_F()
149 	session_fd2 = create_session(self->fd1, "distinct-session-2");  in TEST_F()
165 		return -errno;  in preserve_fd()
171  * Test Case: Preserve MemFD
182 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
183 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
185 	ASSERT_GE(self->fd1, 0);  in TEST_F()
187 	session_fd = create_session(self->fd1, "preserve-memfd-test");  in TEST_F()
190 	mem_fd = memfd_create("test-memfd", 0);  in TEST_F()
204  * Test Case: Preserve Multiple MemFDs
217 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
218 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
220 	ASSERT_GE(self->fd1, 0);  in TEST_F()
222 	session_fd = create_session(self->fd1, "preserve-multi-memfd-test");  in TEST_F()
225 	mem_fd1 = memfd_create("test-memfd-1", 0);  in TEST_F()
227 	mem_fd2 = memfd_create("test-memfd-2", 0);  in TEST_F()
252  * Test Case: Preserve Complex Scenario
255  * and non-empty memfds distributed across them.
265 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
266 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
268 	ASSERT_GE(self->fd1, 0);  in TEST_F()
270 	session_fd1 = create_session(self->fd1, "complex-session-1");  in TEST_F()
272 	session_fd2 = create_session(self->fd1, "complex-session-2");  in TEST_F()
318  * Test Case: Preserve Unsupported File Descriptor
330 	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);  in TEST_F()
331 	if (self->fd1 < 0 && errno == ENOENT)  in TEST_F()
333 	ASSERT_GE(self->fd1, 0);  in TEST_F()
335 	session_fd = create_session(self->fd1, "unsupported-fd-test");  in TEST_F()
342 	EXPECT_EQ(ret, -ENOENT);  in TEST_F()